Organic Acid Analysis, Urine

CPT: 83919
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Test Details


Urine organic acid testing is useful in the diagnosis and monitoring of patients with inborn errors of organic acid metabolism, inborn errors of amino acid metabolism, urea cycle defects, and defects of the mitochondrial respiratory chain.


Organic acid analysis may fail to detect certain disorders that are characterized by minimal or intermittent metabolite excretion.


Gas chromatography/mass spectrometry (GC/MS)

Specimen Requirements


Urine (random), frozen


10 mL

Minimum Volume

3 mL


Plastic urine container, no preservative

Storage Instructions


Stability Requirements




12 months

Causes for Rejection

Urine too dilute; quantity not sufficient for analysis

Clinical Information


Shapira E, Blitzer MG, Miller JB, et al. Biochemical Genetics: A Laboratory Manual. New York, NY: Oxford University Press;1989.


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
716720 Organic Acid Analysis, Urine 716721 Organic Acid Interpretation 49287-6
716720 Organic Acid Analysis, Urine 716722 Methodology: 49549-9
716720 Organic Acid Analysis, Urine 716723 Contact: N/A

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